Verses 59-62 of Chapter 25:

He Who created the heavens and the earth and all that is between, in six days, and is firmly established on the Throne (of Authority): Allah Most Gracious: ask thou, then, about Him of any acquainted (with such things). When it is said to them, “Prostrate to (Allah) Most Gracious!”, they say, “And what is (Allah) Most Gracious? Shall we prostrate to that which thou commandest us?” And it increases their flight (from the Truth). Blessed is He Who made constellations in the skies, and placed therein a Lamp and a Moon giving light; And it is He Who made the Night and the Day to follow each other: for such as have the will to celebrate His praises or to show their gratitude.